PRESENCE MEDICAL GROUP
NPI 1205110855
Internal Medicine in Chicago, IL

NPI Status: Active since September 30, 2011

Contact Information

2800 N SHERIDAN RD
STE 506
CHICAGO, IL
ZIP 60657
Phone: (773) 472-7680
Fax: (773) 472-7697

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  • Organization
  • Internal Medicine
  • CLIA Number: 14D0953271
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 10-28-2026

About PRESENCE MEDICAL GROUP

This page provides the complete NPI Profile along with additional information for Presence Medical Group, an internist established in Chicago, Illinois operating as a Internal Medicine. The healthcare provider is registered in the NPI registry with number 1205110855 assigned on September 2011. The practitioner's primary taxonomy code is 207R00000X. The provider is registered as an organization and their NPI record was last updated 5 years ago. Presence Medical Group operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The provider's is doing business as Presence Medical Group. The authorized official of this NPI record is Reinhold Llerena Md (Ceo)

NPI
1205110855
Provider Legal Name
PRESENCE HEALTHCCARE SERVICES
Other Organization Name
PRESENCE MEDICAL GROUP
Other Name Type
Doing Business As (3)
Entity Type
Organization
Location Address
2800 N SHERIDAN RD STE 506 CHICAGO, IL 60657
Location Phone
(773) 472-7680
Location Fax
(773) 472-7697
Mailing Address
62311 COLLECTION CENTER DR CHICAGO, IL 60693
Mailing Phone
(630) 914-2417
Mailing Fax
(773) 472-7697
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
09-30-2011
Last Update Date
06-08-2021
Code Navigator

An internist like Presence Medical Group is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207Q00000XAllopathic & Osteopathic Physicians

Family Medicine

 

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

REINHOLD LLERENA MD

Authorized Official Title
CEO
Authorized Official Phone
(224) 273-8908

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
14D0953271
Facility Type
Physician Office
Certificate Effective Date
October 29, 2024
Certificate Expiration Date
October 28, 2026
Laboratory Director
ANDREW M. PAVLATOS
Certificate Type
Certificate for Provider-Performed Microscopy Procedures (PPMP)
Certificate Type Description
This CLIA certificate is issued to Presence Medical Group in which a physician, midlevel practitioner or dentist that performs specific microscopy procedures during the course of a patient's visit. A limited list of provider-performed microscopy procedures is included under this certificate type, which are categorized as moderate complexity testing.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1205110855, we treat the final digit (5) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 45. The final step is to find the difference between that total and the next multiple of ten (50 - 45 = 5).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
2
Unchanged
Pos 3
0
Doubled → 0
Pos 4
5
Unchanged
Pos 5
1
Doubled → 2
Pos 6
1
Unchanged
Pos 7
0
Doubled → 0
Pos 8
8
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
5
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 0 → 0 1 → 2 0 → 0 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 2 + 0 + 5 + 2 + 1 + 0 + 8 + 1 + 0 + 24 = 45

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 45 is 50. The difference is the calculated check digit.

50 - 45 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1205110855.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Internal Medicine (Pulmonary Disease)
2800 N SHERIDAN RD, STE 301
CHICAGO, IL 60657
Internal Medicine (Cardiovascular Disease)
2800 N SHERIDAN RD, STE 400
CHICAGO, IL 60657
Internal Medicine
2800 N SHERIDAN RD, SUITE 400
CHICAGO, IL 60657
Urology
2800 N SHERIDAN RD, SUITE 302
CHICAGO, IL 60657
Family Medicine
2800 N SHERIDAN RD, SUITE 203
CHICAGO, IL 60657
Internal Medicine
2800 N SHERIDAN RD, SUITE 107
CHICAGO, IL 60657
Psychiatry & Neurology (Psychiatry)
2800 N SHERIDAN RD, SUITE 502
CHICAGO, IL 60657
Obstetrics & Gynecology
2800 N SHERIDAN RD, SUITE 304
CHICAGO, IL 60657
Social Worker (Clinical)
2800 N SHERIDAN RD, SUITE 502
CHICAGO, IL 60657
Social Worker (Clinical)
2800 N SHERIDAN RD, SUITE 502
CHICAGO, IL 60657
Physician Assistant (Medical)
2800 N SHERIDAN RD, SUITE 304
CHICAGO, IL 60657
Thoracic Surgery (Cardiothoracic Vascular Surgery)
2800 N SHERIDAN RD, SUITE 209
CHICAGO, IL 60657
Psychologist (Clinical)
2800 N SHERIDAN RD, SUITE 408
CHICAGO, IL 60657
Specialist
2800 N SHERIDAN RD, SUITE 100
CHICAGO, IL 60657
Specialist
2800 N SHERIDAN RD, SUITE 108
CHICAGO, IL 60657
Internal Medicine
2800 N SHERIDAN RD, SUITE 309
CHICAGO, IL 60657
Specialist
2800 N SHERIDAN RD, SUITE 108
CHICAGO, IL 60657
Internal Medicine (Gastroenterology)
2800 N SHERIDAN RD, SUITE 506
CHICAGO, IL 60657
Nurse Practitioner
2800 N SHERIDAN RD, SUITE 301
CHICAGO, IL 60657
Ophthalmology
2800 N SHERIDAN RD, #103
CHICAGO, IL 60657

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1205110855, enumerated as an "organization" on September 30, 2011.

The provider is located at 2800 N SHERIDAN RD STE 506 CHICAGO, IL 60657 and the phone number is (773) 472-7680.

Internal Medicine with taxonomy code 207R00000X.